There are some biscuits in the jar. On Tuesday, Albert ate
57 of the biscuits. He later bought 30 biscuits and added into the jar. On Wednesday, Albert ate 47 biscuits. He was hungry and ate another 33 biscuits. There were no biscuits left. How many biscuits were there in the jar at first?
|
Biscuits |
Before |
7 u |
Change 1 |
- 5 u |
Change 2 |
+ 30 |
Change 3 |
- 47 |
Change 4 |
- 33 |
After |
0 |
Fraction of the biscuits left after Albert first ate on Tuesday
= 1 -
57=
27Number of biscuits left after Albert first ate on Tuesday = 2 u
2 u = 33 + 47 - 30
2 u = 50
1 u = 50 ÷ 2 = 25
Number of biscuits at first
= 7 u
= 7 x 25
= 175
Answer(s): 175